Welcome!

@DevOpsSummit Authors: Liz McMillan, Elizabeth White, Pat Romanski, Jason Bloomberg, Yeshim Deniz

Related Topics: @DevOpsSummit

@DevOpsSummit: Blog Feed Post

Creating a Deployment Model for Scripted DB Updates

It is common for enterprises to work with hundreds of applications

Creating a Deployment Model for Scripted DB Updates
By Dave Roberts

It is common for enterprises to work with hundreds of applications, each of those calling for a number of database scripts to be executed in a particular order. Needless to say, the execution and organization of these scripts can become complex and tedious. Instead of creating new steps for every application release, modeling your scripted database updates will organize your script execution into an automated, repeatable process that allows for quick changes and stability within the release.

Your application may call for a number of scripts to be executed in a particular order, where the flow bounces from one schema to another, then back to the first, then to another one altogether. Take close look at the example below:

Let’s look at how to model the above scenario in XL Deploy.

To begin, we’ll model the infrastructure.

Each schema is modeled by a database client that connects to that schema on the proper database. Each schema could be in the same database or in different databases. Although the database is one of the properties of this client object, the schema is not, so we’ll rely on tag-matching to get the correct scripts deployed to it.

 

Next, we’ll create the second part of our model, an Environment with the following containers as members:

Finally, the third part of our model is the application package. We are starting with a repo with a number of database script or SQL files, along with a mapping.txt file that gives us a mapping and ordering between file and schema.

Here the mapping tells us to run the 1*.sql files against schema A, then the 2*.sql files against schema B, and so on, to produce the deployment step list we started with.

But remember that XL Deploy doesn’t deploy individual scripts, rather it handles packages of scripts, and within each package, the scripts are executed in lexicographical order.  See https://docs.xebialabs.com/xl-deploy/concept/database-plugin.html.

 

Enterprise-scale Application Release Automation

Learn about XL Deploy and how it’s Model-based deployment approach can organize your deployments into an automated repeatable process.

 

 

 

 

To package up this repository into objects that XL Deploy can handle, we’re going to run a little packager script that interprets the mapping file and bundles the scripts appropriately. And, we’re going to run it all under Jenkins to take advantage of the XL Deploy post-build action to create a Deployment Package and publish it to XL Deploy’s repository. In the course of that, we’ll place tags on the deployable objects we create in order to facilitate the correct mappings. We can also invoke a deployment from Jenkins, but we’ll stop short of that so we can analyze the resulting mappings in detail.

So, first, the packager script:

SEQ=1
while read NUM SCHEMA
do
  echo $NUM $SCHEMA
  cd $WORKSPACE
  mkdir sql-obj-$SEQ
  cp $NUM*.sql sql-obj-$SEQ
  cd sql-obj-$SEQ
  zip ../sql-obj-$SEQ.zip *.sql
  echo "SQLOBJ$SEQ"=SCHEMA-$SCHEMA >> $WORKSPACE/$2
  SEQ=`expr $SEQ + 1`
done < $1

Jenkins will invoke it with two parameters. $1 is the mapping.txt file. As we saw above, it is committed to the same source-control repo as the SQL files. And $2 is an output file, buildVariables.properties, which we’ll pass to the Jenkins Inject-Variables plugin to help tag our objects later.

Of course, we could get much more sophisticated here as to how we group the source *.sql files into bundles, perhaps using number ranges or regex matching, but this simple script conveys enough of the idea.

The result of this script is a zip file for each line of the mapping file, numbered sequentially:  sql-obj-1.zip, sql-obj-2.zip, sql-obj-3.zip, sql-obj-4.zip, and sql-obj-5.zip. Each zip contains the SQL scripts we instructed the packager to include. In this case, the first argument on the mapping line is matched against the first character of the SQL file’s name, so we bundle scripts 10-13 into the first object, 20-23 into the second object, and so on.

Note that the matching-number here (NUM) and the sequence number (SEQ) are independent — for this example they happen to coincide, but I’ll show later an example where they don’t.

Also resulting from the script is the buildVariables.properties file, where the right side of each assignment is a tag for XL Deploy:

SQLOBJ1=SCHEMA-A
SQLOBJ2=SCHEMA-B
SQLOBJ3=SCHEMA-A
SQLOBJ4=SCHEMA-C
SQLOBJ5=SCHEMA-B

We use the Inject-environment-varibles plugin (https://wiki.jenkins-ci.org/display/JENKINS/EnvInject+Plugin) to set variables holding the tag values.

Finally, we come to the post-build action that creates an application package. We set the app name and version:

And then we have a sql.SqlScripts deployable for each line in the mapping.txt file that makes use of an injected variable for its tag. Here is the first one of the five needed for this example.  Change the ‘1’  in the Name, Tags variable, and Location to ‘2’ for the next one, and then to ‘3’, ‘4’, and ‘5’ for the rest.

Key to our ordering scenario is that these artifacts will be executed in order by the Name field, sql-obj-1, sql-obj-2, etc., while the individual scripts within each one will be ordered by their file names, 10-select.sql, 11-select.sql, etc.

 

Note a limitation here: we have to have one deployable for each line in mapping.txt, and we don’t know how many we will need ahead of time. An easy workaround is to take a liberal guess as to your need and configure a fixed number of objects. The unused ones will be empty and tag-less so they won’t play a role in the deployment. A dynamic approach that adds a variable number of deployables is beyond the scope of this post.

When we run the Jenkins build, we will get the next package into XL Deploy‘s repo, then the drag-and-drop deployment action will give the mapping and ordering we expect:

Finally, let’s change the mapping like this to show the independence of the matching and sequencing numbers. This mapping yields the result shown, demonstrating just how flexible this approach is!

 

The post Creating a Deployment Model for Scripted DB Updates appeared first on XebiaLabs.

Read the original blog entry...

More Stories By XebiaLabs Blog

XebiaLabs is the technology leader for automation software for DevOps and Continuous Delivery. It focuses on helping companies accelerate the delivery of new software in the most efficient manner. Its products are simple to use, quick to implement, and provide robust enterprise technology.

@DevOpsSummit Stories
Many companies start their journey to the cloud in the DevOps environment, where software engineers want self-service access to the custom tools and frameworks they need. Machine learning technology can help IT departments keep up with these demands. In his session at 21st Cloud Expo, Ajay Gulati, Co-Founder, CTO and Board Member at ZeroStack, will discuss the use of machine learning for automating provisioning of DevOps resources, taking the burden off IT teams.
SYS-CON Events announced today that Cedexis will exhibit at SYS-CON's 21st International Cloud Expo®, which will take place on Oct 31 – Nov 2, 2017, at the Santa Clara Convention Center in Santa Clara, CA. Cedexis is the leader in data-driven enterprise global traffic management. Whether optimizing traffic through datacenters, clouds, CDNs, or any combination, Cedexis solutions drive quality and cost-effectiveness.
SYS-CON Events announced today that Mobile Create USA will exhibit at the Japan External Trade Organization (JETRO) Pavilion at SYS-CON's 21st International Cloud Expo®, which will take place on Oct 31 – Nov 2, 2017, at the Santa Clara Convention Center in Santa Clara, CA. Mobile Create USA Inc. is an MVNO-based business model that uses portable communication devices and cellular-based infrastructure in the development, sales, operation and mobile communications systems incorporating GPS capability.
SYS-CON Events announced today that Enroute Lab will exhibit at the Japan External Trade Organization (JETRO) Pavilion at SYS-CON's 21st International Cloud Expo®, which will take place on Oct 31 – Nov 2, 2017, at the Santa Clara Convention Center in Santa Clara, CA. Enroute Lab is an industrial design, research and development company of unmanned robotic vehicle system. For more information, please visit http://elab.co.jp/.
SYS-CON Events announced today that Suzuki Inc. will exhibit at the Japan External Trade Organization (JETRO) Pavilion at SYS-CON's 21st International Cloud Expo®, which will take place on Oct 31 – Nov 2, 2017, at the Santa Clara Convention Center in Santa Clara, CA. Suzuki Inc. is a semiconductor-related business, including sales of consuming parts, parts repair, and maintenance for semiconductor manufacturing machines, etc. It is also a health care business providing experimental research for dementia, etc. For more information, visit http://www.e-suzuki.co.jp/en/.
SYS-CON Events announced today that Massive Networks, that helps your business operate seamlessly with fast, reliable, and secure internet and network solutions, has been named "Exhibitor" of SYS-CON's 21st International Cloud Expo ®, which will take place on Oct 31 - Nov 2, 2017, at the Santa Clara Convention Center in Santa Clara, CA. As a premier telecommunications provider, Massive Networks is headquartered out of Louisville, Colorado. With years of experience under their belt, their team of engineers can navigate the Carrier Ecosystem for your IT team acting as an extension of your business, producing a hassle-free experience.
With the rise of DevOps, containers are at the brink of becoming a pervasive technology in Enterprise IT to accelerate application delivery for the business. When it comes to adopting containers in the enterprise, security is the highest adoption barrier. Is your organization ready to address the security risks with containers for your DevOps environment? In his session at @DevOpsSummit at 21st Cloud Expo, Chris Van Tuin, Chief Technologist, NA West at Red Hat, will discuss: The top security risks with containers and how to manage these risks at scale including Images, Builds, Registry, Deployment, Hosts, Network, Storage, APIs, Monitoring/Logging, and Federation.
SYS-CON Events announced today that Nihon Micron will exhibit at the Japan External Trade Organization (JETRO) Pavilion at SYS-CON's 21st International Cloud Expo®, which will take place on Oct 31 – Nov 2, 2017, at the Santa Clara Convention Center in Santa Clara, CA. Nihon Micron Co., Ltd. strives for technological innovation to establish high-density, high-precision processing technology for providing printed circuit board and metal mount RFID tags used for communication devices. For more information, visit http://www.nihon-micron.co.jp/.
SYS-CON Events announced today that mruby Forum will exhibit at the Japan External Trade Organization (JETRO) Pavilion at SYS-CON's 21st International Cloud Expo®, which will take place on Oct 31 – Nov 2, 2017, at the Santa Clara Convention Center in Santa Clara, CA. mruby is the lightweight implementation of the Ruby language. We introduce mruby and the mruby IoT framework that enhances development productivity. For more information, visit http://forum.mruby.org/.
SYS-CON Events announced today that Ryobi Systems will exhibit at the Japan External Trade Organization (JETRO) Pavilion at SYS-CON's 21st International Cloud Expo®, which will take place on Oct 31 – Nov 2, 2017, at the Santa Clara Convention Center in Santa Clara, CA. Ryobi Systems Co., Ltd., as an information service company, specialized in business support for local governments and medical industry. We are challenging to achive the precision farming with AI. For more information, visit http://www.ryobi-sol.co.jp/en/.
SYS-CON Events announced today that SIGMA Corporation will exhibit at the Japan External Trade Organization (JETRO) Pavilion at SYS-CON's 21st International Cloud Expo®, which will take place on Oct 31 – Nov 2, 2017, at the Santa Clara Convention Center in Santa Clara, CA. uLaser flow inspection device from the Japanese top share to Global Standard! Then, make the best use of data to flip to next page. For more information, visit http://www.sigma-k.co.jp/en/.
SYS-CON Events announced today that Daiya Industry will exhibit at the Japan External Trade Organization (JETRO) Pavilion at SYS-CON's 21st International Cloud Expo®, which will take place on Oct 31 – Nov 2, 2017, at the Santa Clara Convention Center in Santa Clara, CA. Daiya Industry specializes in orthotic support systems and assistive devices with pneumatic artificial muscles in order to contribute to an extended healthy life expectancy. For more information, please visit https://www.daiyak.co.jp/en/.
Today traditional IT approaches leverage well-architected compute/networking domains to control what applications can access what data, and how. DevOps includes rapid application development/deployment leveraging concepts like containerization, third-party sourced applications and databases. Such applications need access to production data for its test and iteration cycles. Data Security? That sounds like a roadblock to DevOps vs. protecting the crown jewels to those in IT.
SYS-CON Events announced today that B2Cloud will exhibit at SYS-CON's 21st International Cloud Expo®, which will take place on Oct 31 – Nov 2, 2017, at the Santa Clara Convention Center in Santa Clara, CA. B2Cloud specializes in IoT devices for preventive and predictive maintenance in any kind of equipment retrieving data like Energy consumption, working time, temperature, humidity, pressure, etc.
SYS-CON Events announced today that NetApp has been named “Bronze Sponsor” of SYS-CON's 21st International Cloud Expo®, which will take place on Oct 31 – Nov 2, 2017, at the Santa Clara Convention Center in Santa Clara, CA. NetApp is the data authority for hybrid cloud. NetApp provides a full range of hybrid cloud data services that simplify management of applications and data across cloud and on-premises environments to accelerate digital transformation. Together with their partners, NetApp empowers global organizations to unleash the full potential of their data to expand customer touchpoints, foster greater innovation and optimize their operations.
Most of the time there is a lot of work involved to move to the cloud, and most of that isn't really related to AWS or Azure or Google Cloud. Before we talk about public cloud vendors and DevOps tools, there are usually several technical and non-technical challenges that are connected to it and that every company needs to solve to move to the cloud. In his session at 21st Cloud Expo, Stefano Bellasio, CEO and founder of Cloud Academy Inc., will discuss what the tools, disciplines, and cultural aspects are that enterprise companies are considering to get to the cloud and eventually transform the way they build software and services.
SYS-CON Events announced today that Interface Corporation will exhibit at the Japan External Trade Organization (JETRO) Pavilion at SYS-CON's 21st International Cloud Expo®, which will take place on Oct 31 – Nov 2, 2017, at the Santa Clara Convention Center in Santa Clara, CA. Interface Corporation is a company developing, manufacturing and marketing high quality and wide variety of industrial computers and interface modules such as PCIs and PCI express. For more information, visit http://www.interface-amita.com/aboutus/interface_profile.asp.
SYS-CON Events announced today that Keisoku Research Consultant Co. will exhibit at the Japan External Trade Organization (JETRO) Pavilion at SYS-CON's 21st International Cloud Expo®, which will take place on Oct 31 – Nov 2, 2017, at the Santa Clara Convention Center in Santa Clara, CA. Keisoku Research Consultant, Co. offers research and consulting in a wide range of civil engineering-related fields from information construction to preservation of cultural properties. For more information, visit http://www.krcnet.co.jp/eng_site/e_index.htm.
SYS-CON Events announced today that MIRAI Inc. will exhibit at the Japan External Trade Organization (JETRO) Pavilion at SYS-CON's 21st International Cloud Expo®, which will take place on Oct 31 – Nov 2, 2017, at the Santa Clara Convention Center in Santa Clara, CA. MIRAI Inc. are IT consultants from the public sector whose mission is to solve social issues by technology and innovation and to create a meaningful future for people.
SYS-CON Events announced today that Fusic will exhibit at the Japan External Trade Organization (JETRO) Pavilion at SYS-CON's 21st International Cloud Expo®, which will take place on Oct 31 – Nov 2, 2017, at the Santa Clara Convention Center in Santa Clara, CA. Fusic Co. provides mocks as virtual IoT devices. You can customize mocks, and get any amount of data at any time in your test. For more information, visit https://fusic.co.jp/english/.
SYS-CON Events announced today that N3N will exhibit at SYS-CON's @ThingsExpo, which will take place on Oct 31 – Nov 2, 2017, at the Santa Clara Convention Center in Santa Clara, CA. N3N’s solutions increase the effectiveness of operations and control centers, increase the value of IoT investments, and facilitate real-time operational decision making. N3N enables operations teams with a four dimensional digital “big board” that consolidates real-time live video feeds alongside IoT sensor data and analytics insights onto a single, holistic, display, focusing attention on what matters, when it matters.
Today most companies are adopting or evaluating container technology - Docker in particular - to speed up application deployment, drive down cost, ease management and make application delivery more flexible overall. As with most new architectures, this dream takes significant work to become a reality. Even when you do get your application componentized enough and packaged properly, there are still challenges for DevOps teams to making the shift to continuous delivery and achieving that reduction in cost and increase in speed. Sometimes in order to reduce complexity teams compromise features or change requirements
21st International Cloud Expo, taking place October 31 - November 2, 2017, at the Santa Clara Convention Center in Santa Clara, CA, will feature technical sessions from a rock star conference faculty and the leading industry players in the world. Cloud computing is now being embraced by a majority of enterprises of all sizes. Yesterday's debate about public vs. private has transformed into the reality of hybrid cloud: a recent survey shows that 74% of enterprises have a hybrid cloud strategy. Meanwhile, 94% of enterprises are using some form of XaaS – software, platform, and infrastructure as a service.
Agile has finally jumped the technology shark, expanding outside the software world. Enterprises are now increasingly adopting Agile practices across their organizations in order to successfully navigate the disruptive waters that threaten to drown them. In our quest for establishing change as a core competency in our organizations, this business-centric notion of Agile is an essential component of Agile Digital Transformation. In the years since the publication of the Agile Manifesto, the connection between building better software and business agility has been a tenuous one at best. But now that Agile is maturing and Digital Transformation is driving change across enterprises large and small, companies are realizing that their best bet for achieving business agility is to take the best of Agile and apply it across the entire organization.
While some developers care passionately about how data centers and clouds are architected, for most, it is only the end result that matters. To the majority of companies, technology exists to solve a business problem, and only delivers value when it is solving that problem. 2017 brings the mainstream adoption of containers for production workloads. In his session at 21st Cloud Expo, Ben McCormack, VP of Operations at Evernote, will discuss how data centers of the future will be managed, how the public cloud best suits your organization, and what the future holds for operations and infrastructure engineers in a post-container world. Is a serverless world inevitable?